如何强制子div是100%的父div的高度而不指定父的高度?

我有一个网站与以下结构:

<div id="header"></div>

<div id="main">
  <div id="navigation"></div>
  <div id="content"></div>
</div>

<div id="footer"></div>

导航栏在左边，内容div在右边。内容div的信息是通过PHP拉入的，因此每次都是不同的。

我怎样才能垂直缩放导航，使其高度与内容div的高度相同，无论哪个页面被加载?

当前回答

你使用CSS Flexbox

.flex-container { display: flex; background-color: DodgerBlue; } .flex-container > div { background-color: #f1f1f1; margin: 10px; padding: 20px; font-size: 30px; } <!DOCTYPE html> <html> <head> </head> <body> <div class="flex-container"> <div>1</div> <div>2</div> <div>3</div> </div> <p>A Flexible Layout must have a parent element with the <em>display</em> property set to <em>flex</em>.</p> <p>Direct child elements(s) of the flexible container automatically becomes flexible items.</p> </body> </html>

2018-07-07 23:23:09

其他回答

我有同样的问题，它的工作基于Hakam Fostok的答案，我已经创建了一个小例子，在某些情况下，它可能不需要添加显示:flex;而弯曲方向:圆柱;在父容器上

.row {
    margin-top: 20px;
}

.col {
    box-sizing: border-box;
    border: solid 1px #6c757d;
    padding: 10px;
}

.card {
    background-color: #a0a0a0;
    height: 100%;
}

JSFiddle

2019-08-14 14:37:13

如果你不介意导航div在意外的短内容div事件中被剪辑，至少有一个简单的方法:

#main {
position: relative;
}

#main #navigation {
position: absolute;
top: 0;
left: 0;
bottom: 0;
width: 10em; /* or whatever */
}

#main #content {
margin: 0;
margin-left: 10em; /* or whatever width you set for #navigation */
}

除此之外，还有假柱技术。

2009-07-13 22:22:10

下面的代码提供了设置滚动div的最小高度的能力，并通过使用flex使其具有其父div的100%高度。

CSS:

.main {
  display: flex;
  flex-direction: column;
}

.scroll {
  overflow: auto;
  flex: 1 0 50px;
}

HTML:

<div class="main">
  <div class="scroll">
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
    Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum.
  </div>
</div>

2022-08-02 05:46:49

我知道这个问题已经有很长一段时间了，但我找到了一个简单的解决方法，并且认为有人可以使用它(对不起，英语不好)。是这样的:

CSS

.main, .sidebar {
    float: none;
    padding: 20px;
    vertical-align: top;
}
.container {
    display: table;
}
.main {
    width: 400px;
    background-color: LightSlateGrey;
    display: table-cell;
}
.sidebar {
    width: 200px;
    display: table-cell;
    background-color: Tomato;
}

HTML

<div class="container clearfix">
    <div class="sidebar">
        simple text here
    </div>
    <div class="main">
        Lorem ipsum dolor sit amet, consectetur adipiscing elit. Etiam congue, tortor in mattis mattis, arcu erat pharetra orci, at vestibulum lorem ante a felis. Integer sit amet est ac elit vulputate lobortis. Vestibulum in ipsum nulla. Aenean erat elit, lacinia sit amet adipiscing quis, aliquet at erat. Vivamus massa sem, cursus vel semper non, dictum vitae mi. Donec sed bibendum ante.
    </div>
</div>

简单的例子。注意，您可以将其转换为响应性。

2014-10-29 11:57:25

试着让最低利润率达到100%。

margin-bottom: 100%;

2013-12-29 15:59:43

如何强制子div是100%的父div的高度而不指定父的高度?

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